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VM 28 or VM 29s

Posted: Mon Aug 18, 2014 8:56 pm
Author: Lee McEvoy
Is there a way of telling the difference (without measuring the insides) between the 28s and 29s?

Thanks :D

Posted: Mon Aug 18, 2014 9:06 pm
Author: Mark Tiller
29 smoothbores have this little square casting on the side

Image

Posted: Mon Aug 18, 2014 9:06 pm
Author: Pigford
YES


Easy difference is the top cover - the 29's have a "keyhole" shaped top :wink:

Posted: Mon Aug 18, 2014 9:20 pm
Author: z1000puddin
GOD I AM SLOW AT THIS !!
Lee,
One of the signs of 29mm Smoothbores is if you look on the R/H side on the body just above the float bowl- you will see a small square recess in the body casting.
Image

Posted: Tue Aug 19, 2014 7:03 am
Author: big green bus
I thought the 29's have a hex nut on the float bowl to get to the main jet instead of a drain screw

Re: VM 28 or VM 29s

Posted: Tue Aug 19, 2014 10:31 am
Author: snotie1965
Lee McEvoy wrote:Is there a way of telling the difference (without measuring the insides) between the 28s and 29s?

Thanks :D
I do not think he meant "smooth bores" :?:

Re: VM 28 or VM 29s

Posted: Tue Aug 19, 2014 11:59 am
Author: zed1015
snotie1965 wrote:
Lee McEvoy wrote:Is there a way of telling the difference (without measuring the insides) between the 28s and 29s?

Thanks :D
I do not think he meant "smooth bores" :?:


The 29mm only came as smoothbores.

Re: VM 28 or VM 29s

Posted: Tue Aug 19, 2014 3:05 pm
Author: snotie1965
zed1015 wrote:
snotie1965 wrote:
Lee McEvoy wrote:Is there a way of telling the difference (without measuring the insides) between the 28s and 29s?

Thanks :D
I do not think he meant "smooth bores" :?:


The 29mm only came as smoothbores.
I always thought that GS1000 S used 29 mm ? but it would not be the 1st or last time ive been wrong :oops:

Posted: Tue Aug 19, 2014 5:19 pm
Author: Lee McEvoy
Thanks for those steers. Looks like I have the VM29s :D

Image

Although not sure about the key hole tops pigford talked about.

Sorry about the photo

Lee

Posted: Tue Aug 19, 2014 5:42 pm
Author: Pigford
Image PROPER SMOOTHIES


Image

...................thats what I'm talking about :lol:

Posted: Tue Aug 19, 2014 5:49 pm
Author: jimmock
Lee McEvoy wrote:Thanks for those steers. Looks like I have the VM29s :D

Image

Although not sure about the key hole tops pigford talked about.

Sorry about the photo

Lee



Lee,

I think your engine is in the frame the wrong way??

Re: VM 28 or VM 29s

Posted: Tue Aug 19, 2014 6:15 pm
Author: zed1015
snotie1965 wrote:
zed1015 wrote:
snotie1965 wrote:
Lee McEvoy wrote:Is there a way of telling the difference (without measuring the insides) between the 28s and 29s?

Thanks :D
I do not think he meant "smooth bores" :?:


The 29mm only came as smoothbores.
I always thought that GS1000 S used 29 mm ? but it would not be the 1st or last time ive been wrong :oops:


Gs1000 used either 26mm or 28mm slides depending on model before going to CV's.
The 998cc homologation Katana used 32mm smoothbores (the 1100 used CV's)

smootbores

Posted: Wed Aug 20, 2014 11:21 am
Author: markz9
i recently got some gs1000 parts and was told 1 set of carbs where off a katana 998cc does the inside of the carb body change into an oval shape rather than staying round all the way through??
mark

Posted: Wed Aug 20, 2014 6:19 pm
Author: Crofty
There were some Katana carbs that had oval throats.

Re: smootbores

Posted: Wed Aug 20, 2014 8:20 pm
Author: zed1015
markz9 wrote:i recently got some gs1000 parts and was told 1 set of carbs where off a katana 998cc does the inside of the carb body change into an oval shape rather than staying round all the way through??
mark


Yes! They are oval at the venturi.